1/5/07 Purchased 100 bags of milk at #10.00k each
3/5/07 Purchased 60 bags of milk at #11.50k each
15/5/07 Issued 85 bags of milk
15/5/07 Purchased 180 bags of milk at #12.80K each
22/5/07 Issued 145 bags of milk.

Using simple average method, calculate the value of stock after 22/5/07